A mixture has two chemical in a liquid form. They are called chemical P and chemical Q , respectively. A particular mixture contains 12 part of chemical P and 8 parts of chemical Q . What is the percentage of P and Q in this mixture?
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percentage of P = 12/(12+8)*100%
= 12/20*100%
= 60%
percentage of Q = 8/(12+8)*100% (or 100%-60%)
= 8/20*100%
= 40%
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